The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Tower of Hanoi in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 81st sean-niemann 🇺🇸 925 69 384ms 31 Oct 2025 81st stefangimmillaro 925 69 354ms 31 Oct 2025 81st GolfingSuccess 🇬🇷 925 69 351ms 31 Oct 2025 81st AdrienHache 🇫🇷 925 69 405ms 1 Nov 2025 81st pardouin 🇫🇷 925 69 388ms 26 days ago 81st DialFrost 🇸🇬 925 69 411ms 24 days ago 81st KasperKivimaeki 🇫🇮 925 69 372ms 24 days ago 81st JayXon 🇺🇸 925 69 406ms 6 days ago 89th rucin93 🇵🇱 925 76 388ms 30 Oct 2025 89th GolfingSuccess 🇬🇷 925 76 444ms 30 Oct 2025 89th stefangimmillaro 925 76 431ms 31 Oct 2025 89th sean-niemann 🇺🇸 925 76 479ms 31 Oct 2025 89th edsrzf 🇳🇿 925 76 553ms 31 Oct 2025 89th KasperKivimaeki 🇫🇮 925 76 492ms 1 Nov 2025 89th namelessiw 925 76 367ms 28 Nov 2025 89th DialFrost 🇸🇬 925 76 361ms 24 days ago 89th JayXon 🇺🇸 925 76 418ms 6 days ago 98th 2bular 924 35 4ms 1 Nov 2025 99th bitsandbeyond 🇳🇱 924 46 3ms 2 Nov 2025 99th sean-niemann 🇺🇸 924 46 3ms 24 days ago 99th xsot 🇸🇬 924 46 2ms 24 days ago 102nd ovs-code 🇩🇪 924 57 66ms 19 days ago 103rd rucin93 🇵🇱 924 66 2ms 30 Oct 2025 103rd KasperKivimaeki 🇫🇮 924 66 2ms 30 Oct 2025 103rd saito-ta 🇯🇵 924 66 2ms 5 Nov 2025 103rd DialFrost 🇸🇬 924 66 2ms 24 days ago 103rd AdrienHache 🇫🇷 924 66 2ms 24 days ago 108th bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 108th GolfingSuccess 🇬🇷 923 52 743ms 26 days ago 108th sean-niemann 🇺🇸 923 52 762ms 24 days ago 111th JayXon 🇺🇸 923 59 127ms 4 days ago 112th edsrzf 🇳🇿 923 73 9ms 25 days ago 113th stefangimmillaro 922 48 8ms 31 Oct 2025 113th rucin93 🇵🇱 922 48 9ms 31 Oct 2025 113th bitsandbeyond 🇳🇱 922 48 8ms 31 Oct 2025 113th GolfingSuccess 🇬🇷 922 48 8ms 3 Nov 2025 113th ovs-code 🇩🇪 922 48 8ms 27 days ago 113th sean-niemann 🇺🇸 922 48 9ms 24 days ago 113th xsot 🇸🇬 922 48 9ms 24 days ago 113th nwellnhof 🇩🇪 922 48 10ms 32 mins ago 121st stefangimmillaro 919 50 750ms 30 Oct 2025 121st pardouin 🇫🇷 919 50 774ms 1 Nov 2025 121st sean-niemann 🇺🇸 919 50 813ms 24 days ago 124th sean-niemann 🇺🇸 919 84 73ms 24 days ago 124th JayXon 🇺🇸 919 84 61ms 5 days ago 126th GrayJoKing 🇦🇺 918 47 96ms 22 days ago 127th rucin93 🇵🇱 918 55 6ms 30 Oct 2025 128th JayXon 🇺🇸 918 62 3ms 5 days ago 129th GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 130th rucin93 🇵🇱 917 71 116ms 30 Oct 2025 130th kumavale 917 71 124ms 31 Oct 2025 130th stefangimmillaro 917 71 119ms 31 Oct 2025 130th CaedenHarper 🇨🇦 917 71 121ms 26 days ago 130th edsrzf 🇳🇿 917 71 115ms 25 days ago 130th sean-niemann 🇺🇸 917 71 119ms 24 days ago 130th DialFrost 🇸🇬 917 71 119ms 24 days ago 130th JayXon 🇺🇸 917 71 132ms 6 days ago 138th JayXon 🇺🇸 917 90 279ms 6 days ago 138th sean-niemann 🇺🇸 917 90 280ms 5 days ago 140th sean-niemann 🇺🇸 916 65 110ms 24 days ago 140th JayXon 🇺🇸 916 65 103ms 5 days ago 142nd JayXon 🇺🇸 915 64 1,334ms 4 days ago 143rd Shanethegamer 🇺🇸 915 84 27ms 2 Nov 2025 143rd m-tkach 🇺🇦 915 84 27ms 25 days ago 145th kg583 🇺🇸 913 52 365ms 30 Oct 2025 145th sean-niemann 🇺🇸 913 52 390ms 24 days ago 147th xnor-gate 913 54 11ms 27 days ago 147th hellopir2 913 54 10ms 27 days ago 147th rucin93 🇵🇱 913 54 12ms 18 days ago 147th emgordon154 913 54 12ms 6 days ago 151st stefangimmillaro 913 55 82ms 31 Oct 2025 152nd pardouin 🇫🇷 913 67 3,954ms 1 Nov 2025 152nd bitsandbeyond 🇳🇱 913 67 3,602ms 2 Nov 2025 154th pardouin 🇫🇷 913 77 357ms 26 days ago 155th Kacarott 🇦🇺 913 80 69ms 27 days ago 155th ovs-code 🇩🇪 913 80 69ms 27 days ago 157th bitsandbeyond 🇳🇱 911 70 392ms 1 Nov 2025 157th namelessiw 911 70 407ms 2 Nov 2025 159th stefangimmillaro 911 75 41ms 31 Oct 2025 160th edsrzf 🇳🇿 910 65 5ms 8 days ago First Prev 81–160 of 1,116 Next Last